Now showing items 1-20 of 36

    • A frequency approach on MIMO DSP for optical communication systems 

      Palou Garcia, Xavier (Universitat Politècnica de Catalunya, 2013-02-28)
      Master thesis (pre-Bologna period)
      120 months embargo
      [ANGLÈS] Spatial Division Multiplexing (SDM) has arisen during the last years as the most promising technique to overcome the increasing necessity of capacity of the communication systems while avoiding the theoretical ...
    • Advanced Delivery System for 5G-enabled Photonic Networks 

      Gómez Gonzalvo, Alberto (Universitat Politècnica de Catalunya, 2014-05-21)
      Bachelor thesis
      Open Access
      Covenantee:   Danmarks tekniske universitet
      [ANGLÈS] The advent of mobile devices such as smartphones or tablets demanding high capacity services drives a solution for next generation wireless networks. Wireless and optical networks are converging to increase the ...
    • Analysis of physical effects on multi-flow flex-grid optical networks 

      Salas Martínez, Alejandra (Universitat Politècnica de Catalunya, 2015-07-20)
      Bachelor thesis
      Open Access
      In the present project, the effect of physical impairments induced by the transmission trough a flexgrid optical network, has been studied by means of numerical simulations. In particular, the frequency filtering effect ...
    • Diseño de una red FTTH en Santa Coloma de Gramenet 

      Barrientos Solera, Yaiza (Universitat Politècnica de Catalunya, 2016-07-14)
      Bachelor thesis
      Open Access
      This project consists of the design of a FTTH/P2P network for the city of Santa Coloma de Gramenet. The City Hall of this municipality requesting the services of a freelance engineer to know the magnitude of the project. ...
    • E-Learning: Virtualització d'un curs online de fibra òptica 

      Algara Muñoz, Manuel (Universitat Politècnica de Catalunya, 2015-06)
      Master thesis (pre-Bologna period)
      Restricted access - confidentiality agreement
    • Evaluation of crosstalk relative phase dependence in optical M-QAM signals 

      Lacambra Blanca, David (Universitat Politècnica de Catalunya, 2017-06)
      Bachelor thesis
      Open Access
      First of all, this project analyzes the dependence existing between crosstalk due to interference signal and the corresponding penalty; second, this project analyzes the dependence existing between the phase of the ...
    • Evaluation of crosstalk robustness of optical OFDM 

      Piera Arrufat, Sergi (Universitat Politècnica de Catalunya, 2016-07-14)
      Bachelor thesis
      Open Access
      The OFDM technology has been highly studied/investigated in the telecommunications field but it is still a relatively new term in the optical communications. OFDM has been evaluated in various studies although the tolerance ...
    • Evaluation of optical OFDM signals crosstalk tolerance 

      Escolano Beltrán, Adrià (Universitat Politècnica de Catalunya, 2016-01)
      Bachelor thesis
      Open Access
      OFDM technology has been highly investigated in the radio communication field but it is a quite new technology in the field of fiber-optic communication. Its tolerance against linear intrachannel crosstalk remains an open ...
    • Experimental demonstration of long-distance space-division multiplexing transmission over few-mode and multi-core fibers 

      Mestre Adrover, Miquel Àngel (Universitat Politècnica de Catalunya, 2013-02-13)
      Master thesis (pre-Bologna period)
      Open Access
      [ANGLÈS] After the extremely fast growth over last two decades, single-mode fibers capacity is reaching its recently revealed fundamental limit, imposed by a combination of Shannon's information theory and fiber nonlinearities. ...
    • Fiber4You 

      Duran Gonzalez, Pol (Universitat Politècnica de Catalunya, 2015-10-27)
      Bachelor thesis
      Restricted access - author's decision
      Project based in fiber to the town strategies
    • Implementation of a half-duplex visible light communication link 

      Torner Tarrés, Miquel (Universitat Politècnica de Catalunya, 2015-02)
      Bachelor thesis
      Open Access
      [ANGLÈS] This thesis consists in the design and implementation of a Visible Light Communications (VLC) system, based on an Arduino platform. The document describes the main features of this system, by describing how each ...
    • Implementation of DSP algorithms in VHDL for high-speed optical communications 

      Caelles Prat, Sergi (Universitat Politècnica de Catalunya, 2014-07)
      Bachelor thesis
      Open Access
      [ANGLÈS] The amount of traffic that backbone networks have to handle increases every year at about 30 to 60 %. A solution that has been used for the last two decades is the wavelengthdivision multiplexing (WDM) technique ...
    • Investigación de la tolerancia al crosstalk de los sistemas OFDM ópticos 

      Garin Ureña, Ferran (Universitat Politècnica de Catalunya, 2015-10-30)
      Master thesis (pre-Bologna period)
      Open Access
      This project aims to investigate the impact of crosstalk in optical OFDM modulation under ideal conditions, i.e. without losses, phase noise or nonlinear effects. In order to get it we will analyze deeply how the OFDM works ...
    • Investigación sobre spatial-division multiplexing (SDM) en comunicaciones por fibra óptica 

      Latorre Campos, Borja (Universitat Politècnica de Catalunya, 2016-05-31)
      Master thesis (pre-Bologna period)
      Open Access
      In this work we analyze propagating LP modes (Linearly Polarized) in different independent spatial paths, mentioning the energetic density of the electromagnetic fields of these modes with a fixed normalized frequency and ...
    • Investigation on Crosstalk in Multi-core Optical Fibers 

      Tapia Martinez, Ludwig Adolfo (Universitat Politècnica de Catalunya, 2015-09)
      Master thesis
      Open Access
      We start by describing what SDM is, the problem at hand for it’s been considered and the different solutions it can provide. We focus on Multi - Core Fibers (MCF) as the favorite solution re garding SDM and ...
    • Investigation on Nyquist Modulation and Multiplexing for Fiber-Optic Communications 

      Jubany Ticó, Marc (Universitat Politècnica de Catalunya, 2016-02)
      Bachelor thesis
      Open Access
      Nowadays, the society in which we live, the need to communicate increases every day; therefore, there is a need to improve both spectral efficiency and methods of transmitting data faster. This thesis analyses a new ...
    • Investigation on Nyquist Modulation for Fiber-Optic Communications 

      Casal Rodríguez, Jonathan (Universitat Politècnica de Catalunya, 2015-07)
      Bachelor thesis
      Restricted access - author's decision
      In a society where the need for communication is increasing every day, an improvement in spectral efficiency and faster data transmission methods are needed. This thesis analyses a new modulation, the Nyquist modulation, ...
    • IoT and tracking capabilities in LPWANs 

      Carbonés Fargas, Bernat (Universitat Politècnica de Catalunya, 2017-02)
      Master thesis
      Open Access
      Covenantee:   Danmarks tekniske universitet
      Internet of Things (IoT) has been growing over the last few years in multiple applications and due to the high consumption of the GPS for tracking capabilities, an innovative opportunity arises. This thesis aims to design ...
    • Is a Flex-grid Optical Network Worthy? 

      Ros Martí, Marc (Universitat Politècnica de Catalunya, 2015-06)
      Bachelor thesis
      Open Access
      Applying flexibility to the optical networks has become a hot topic in the optical technologies field. This proposal has some advantages but also considerable drawbacks that allow us to question if the use of these networks ...
    • Machine learning for optical modulation format recognition 

      Boada Farràs, Ricard (Universitat Politècnica de Catalunya, 2014-05)
      Bachelor thesis
      Open Access
      Covenantee:   Danmarks tekniske universitet
      [ANGLÈS] Next generation of optical networks will necessitate the use of advanced functionalities in the transceivers. In particular, modulation format recognition will enable dynamically switched energy efficient networks ...